Harrow



(No Model.)

A G. EVANS.

HARROW.

No. 336,906. PatentedMar. 2, 1886.

I fnvsn 0.2" M; 60W 5 Mafi 77 ammo.

UNITED STATES PATENT OFFICE.

AUSTIN O. EVANS, OF SPRINGFIELD, OHIO.

HARROW.

SPECIFICATION forming part of Letters Patent No. 336,906, dated March 2,1886.

Application filed November 26, 1884. Serial No. 148,889. (No model.)

To all whom 2 1nay concern:

Be it known that I, AUSTIN O. Evl\Ns,a citizen of the United States,residing at Springfield, in the count-y of Clark and State of Ohio, haveinvented certain new and useful Improvements in Harrows, of which thefollowing is a full, clear, and exact description, reference being hadto the accompanying drawings, forming a part of this specification.

My invention relates to that class of harrows known as spike-toothbarrows. either in single frames or in sections hinged or otherwisesuitably connected togcther, and having swiveled teeth so applied as tobe free to turn entirely around, thus insuring the wearing of all sidesalike when in use, and further so applied,as that when the harrow isdrawn from one end the teeth will stand straight or vertical, and whendrawn from the other end they will assume a backward slanting position,but in both cases will be free to turn around on their axes.

The novelty of my invention will be herein set forth and specificallypointed out in the claim.

In the accompanying drawings, Figure l is a side elevation of anordinary harrow containing my invention, showing the teeth straight insolid lines, and angling in dotted lines. Fig. 2 is an enlargedperspective view of one of theteeth connected by my improved holder. toa portion of one of the beams. Fig. 3 is a perspective view of one ofthe teeth detached. Fig. 4 is a perspective view showing the inside ofthe holder.

The same letters of reference are used to indicate indentical parts inall the figures.

A represents one of the beams of any suitably-constructed harrow, and Bthe teeth applied thereto. These teeth are spikes of any desired shapein. cross-section, though here shown round, with pyramidal point, andwith an enlargement or head, a. To attach these teeth to theharrow-beams I employ the holders 0, each of which consists of a shell,as seen in upon the top of the beam.

Figs. 2 and 4, with an upper recess, b, into which the head of the toothis slipped and confined, a vertical end wall, 0, an inclined end wall,d, a guide-bar connecting the lower ends of the end walls for relievingthe recessed head from lateral strain, perforated bosses eon each side,and an upper overlapping lip or shoulder, f.

From this constructionit will be at once seen that after slipping thetooth into the holder p and inserting the bosses e into perforationsmade to receive them in the side of the beam, the lip of the shoulder fwill overlap and rest A couple of bolts or screws, 9, inserted throughthe perforations of the bosses e and into or through the beam is allthat is necessary to secure the holder absolutely tight to the beam. Bymeans of the bosses e and the lip or shoulder f, all twisting of theholder upon the beam is prevented and a very secure fastening issecured.

I am aware, however, that a tooth-holder having a recess or seat and avertical and an inclined wall together with a swiveled tooth having anenlargement or head fitting in the said recess or seat is old, and I donot here broadly claim such a construction or combination; but,

Having thus fully described my invent-ion, I claim- The combination,with a harrow-beam and barrow-tooth having an enlarged head, of theholder O,with an upper recess, 12, for receiving and retaining the headof the tooth, bosses e, recessed in the beam, an overlapping lip orshoulder, f, resting upon the top of the beam, end walls, 0 d, theformer of which is vertical and the latter inclined, and whose lowerends are connected by a guide-bar for preventing lateral strain,substantially as described.

AUSTIN O. EVANS.

Witnesses:

CHAS. R. WHITE, J. WARREN KEIFER.

